They didn’t have an issue with the knee as it stands now, what they had an issue with the way I understand it is with the type of surgery that was used to repair it. It wasn’t the best repair work and could leave the knee susceptible to future degradation.
Would something like that not just be down to interpretation though? Just because his knee was operated on in a different way to how they’d usually expect it to be, doesn’t necessarily mean it’s not been done just as effectively. The fact he’s come back so strong from it I think is a positive sign, I can’t think of many players from the Premier League having a similar injury and coming back this well.
Look how we send Lallana off to Qatar, America and Christ knows where for his injuries in the last year and what happens...injured again, same with Sturridge, Gomez, Matip etc. Every player has a risk of injury, shouldn’t be put off just because a player was treated in a different way to how we would want it done.